In announcing the release, WikiLeaks mentions this is “part one of our new Hillary Leaks series.” (WikiLeaks, 7/22/2016)

Julian Assange, head of WikiLeaks, mentioned in a June 2016 interview that other coming releases will relate to the Clinton Foundation and to Clinton’s emails (although it’s not clear how many there are or where and when they are from). It also was reported in June 2016 that the DNC computer network had been recently hacked, along with other political entities, such as the Clinton campaign. It also was suspected that the Russian government was behind the DNC hack. However, a previously unknown hacker named Guccifer 2.0 emerged and claimed to be behind the hack, and also claimed to have no ties to Russia. He furthermore claimed to have given thousands of documents to WikiLeaks.

WikiLeaks has a policy of never revealing the sources of their leaked material, and has maintained that policy for this release.